Kuzhel, A.V. <br/><br/>
Regular extensions of Hermitian operators   
by A V Kuzhel and S A Kuzhel 
 - The Netherlands  VSP  1998 
 - xii, 272p. 
<br/><br/><label>ISBN: </label>9067642940 
<br/><br/><label>Dewey Class. No.: </label>515.724  / N98